For whatever reason, sometimes the software just ends up with a phantom K-1 that you can't shake.  We have encountered this before and there have been other posts about it over the years.  Sometimes it is easier to start a new return.  Sometimes you can create a copy of the prior year return and mess around with it to delete that other K-1 and then transfer it.  We just had one the other day that a family member was bought out the prior year.  Since it was family, we just left the phantom in the return using the individual's name, etc but showed ownership as zero percent just to get around the problem.  It sucks.